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NSN 4820-01-217-9972

Valve Seat Insert

About this product

4.250 inches flange diameter, 0.880 inches body inside diameter, 0.062 inches seat radius, flange seat to disk end height: 0.625 inches .

Manufacturer part number P8426A for national stock number 4820012179972.

Datasheet

  • Product description

    Valve Seat NSN 4820-01-217-9972.

  • MPN or Model

    P8426A

  • Schedule B
    8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Thread Class
    3a single threaded portion
  • Thread Length
    0.625 inches single threaded portion
  • Flange Diameter
    4.250 inches
  • Body Outside Diameter
    1.688 inches
  • Body Inside Diameter
    0.880 inches
  • Seat Radius
    0.062 inches
  • Flange Seat To Disk End Height
    0.625 inches
  • Under Flange Height
    1.125 inches
  • Thread Size
    4.250 inches single threaded portion
  • Seating Surface Shape
    Radial
  • Material
    Stainless steel
  • Thread Series Designator
    Unf single threaded portion
Valve Seat

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

Mechanic Bill explains Valve Seat Insert

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NSN 4820012179972

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
P8426A Atlas Valve Co
NAP 804 PIECE 4 Atlas Valve Co
NAP 804 Atlas Valve Co
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